Flat Roof Flashing Detail

Correct detailing of lysaght roof and wall flashing has more than cosmetic importance it is essential in ensuring the wet weather performance of the cladding.

Flat roof flashing detail. But now flat roofs often are constructed with fewer layers because of improved waterproofing technology. Large flashings are formed with a hook edge on the top and sides and cleated to the sheathing at 12 o c. Flat roofs are hard to replace. Mc10c low slope ventilated eave detail.

The extra kick at the bottom of the face directs run off away from the structure. What typical detailing methods are used to seal flat roof penetrations. This detail illustrates a method of flashing a ventilator on a sloped roof. Mc10d double lap tile.

Mc12 pan flashing roof to sidewall. Mc12b metal flashing options. Banding is typically used to seal soil vent pipes on single ply roofs such as fdt rhepanol pib and involves wrapping an unreinforced membrane around the pipe to a minimum height of 150mm an approved sealant is then applied to the top of the membrane. Mc11a head wall metal flashing 2.

Roof flashing is a thin material usually galvanized steel that professional roofers use to direct water away from critical areas of the roof wherever the roof plane meets a vertical surface like a wall or a dormer. Detail drawing dwg dwg 252 kb en non removable curb flashing. Typical roofing details autocad files. Two ways to flash roof edges.

The lower edge is hemmed for stiffness. Details concrete masonry roofing wrb flashing. The base flashing extends onto the roof a minimum of 4 and is soldered to the ventilator. Mc11 head wall metal flashing.

Correct flashing and detailing will improve the overall appearance of the finished job. Detail drawing pdf pdf 187 kb en thru wall counterflashing. Roof wall flashing architectural detailing this design guide has been prepared to assist architects and architectural draftspersons with the design and installation intricacies of detailing roof and wall flashing for metal cladding. This could mean flat roofs may not raise the same red flags they used to.

Mc12a pan flashing roof to sidewall 2. Detail drawing dwg dwg 419 kb. Protect the eave from ice dams and sideways rain step one in steep slope roofing is the edge flashing. Typical methods include banding pitch pockets and cover flashings.

Some observers suggest it s harder to replace a flat roof than a traditional pitched shingle roof because of the labor required to remove its layers especially on older flat roofs. One common method is to lay the edge metal under the eaves membrane and over the rake. Gibraltar drip edge flashing can be used with asphalt shingles or metal roofing panels. Skylight roof hatch flashing.

Flashing is installed to surround roof features such as vents chimneys and skylights. This drip edge flashing provides protection from water damage along the eaves and rake of a roof.